Open Source VoIP Software & IP Telephony Projects
ICT Innovations is an open-source development company and part of the global open-source community focused on innovation, communication technologies, and digital transformation.
ICT stands for Information and Communication Technologies.
Open Source ICTs are software-based applications and technologies developed with open collaboration and innovation principles.
ICT Innovations defines Open Source as a catalyst for change and innovation, not only in technology but also in social and business transformation.
ICT Innovations believes that positive thinking and a desire for change are the key drivers of innovation.
ICT Innovations actively contributes to the worldwide open-source ecosystem by building communication and telephony solutions. See everything we have released on our open source projects page.
Open Source Communication Softswitch Platforms
FreeSWITCH
A scalable and stable cross-platform telecom software platform designed for high-performance communication systems.
https://www.freeswitch.org/Asterisk
An open-source PBX platform that revolutionized modern telephony and business communications.
https://www.asterisk.org/Kamailio
SIP proxy server and communication platform used for VoIP, messaging, and real-time communications.
https://www.kamailio.org/OpenSIPS
SIP proxy and routing platform designed for telecom service providers and enterprise communication systems.
https://opensips.org/Asterisk & FreeSWITCH GUI Interfaces
FusionPBX
A multi-tenant PBX and telecom platform powered by FreeSWITCH for enterprise and carrier-grade deployments.
https://www.fusionpbx.com/FreePBX
A full-featured PBX graphical interface supporting Asterisk and FreeSWITCH systems.
https://www.freepbx.org/RasPBX
A Raspberry Pi based Asterisk and FreePBX distribution designed for lightweight VoIP deployments.
http://www.raspberry-asterisk.orgCall Center Solutions
GoAutoDial
A professional inbound and outbound call center solution powered by Asterisk.
http://goautodial.org/Communication Frameworks
ICTCore
An open-source unified communications framework for building voice, fax, SMS, and telephony-enabled applications.
https://ictcore.org/SIP Protocol Stacks & Development Libraries
JsSIP
JavaScript SIP library for WebRTC-based real-time communication applications.
https://github.com/versatica/JsSIPSIP.js
A lightweight JavaScript SIP signaling library powered by WebRTC.
https://github.com/onsip/SIP.jsBroadcasting Platforms
ICTDialer
Open-source autodialer platform with voice, SMS, and fax broadcasting capabilities.
https://ictdialer.org/VoIP Billing Systems
PyFreeBilling
Wholesale VoIP billing platform for FreeSWITCH with high scalability.
https://www.pyfreebilling.com/ASTPP
Open-source VoIP billing and Class 4/Class 5 softswitch solution.
https://www.astppbilling.org/A2Billing
Telecom billing and softswitch platform integrated with Asterisk.
http://www.asterisk2billing.orgMagnusBilling
Open-source VoIP billing and customer management platform.
https://www.magnusbilling.org/VoIP Softphones & Clients
sipML5
HTML5 SIP client built with JavaScript and WebRTC technologies.
https://www.doubango.org/sipml5/Linphone
Open-source SIP softphone supporting voice, video, and messaging.
https://www.linphone.org/Mobile SIP Clients
CSipSimple
Android SIP client powered by the PJSIP communication stack.
http://code.google.com/p/csipsimple/Projects We Maintain
ICTCore
Our unified communications framework. Voice, fax, SMS and email behind a single REST API, so an application does not need to know which channel it is using.
github.com/ictinnovations/ictcoreICTFax
T.38 and G.711 fax server for service providers, with a Docker image published to Docker Hub and GHCR.
github.com/ictinnovations/ictfaxICTPBX Community Edition
Multi-tenant PBX and fax server behind one web interface, free under MPL-2.0 with an Ansible role for installation.
github.com/ictinnovations/ictpbx-community-editionasterisk-ai-voice-agent
Self hosted AI voice agent for Asterisk: streaming speech to text, an LLM and text to speech over AudioSocket.
github.com/ictinnovations/asterisk-ai-voice-agentpbx-mcp
Lets an AI assistant inspect any Asterisk or FreeSWITCH system over AMI and ESL. Read-only until you switch writes on.
github.com/ictinnovations/pbx-mcpDeveloper libraries
Dependency free Node.js clients for AMI, ESL and AudioSocket, a Piper speech server, 21 PHP CRM connectors, LangChain toolkits and eight MCP servers.
github.com/ictinnovations